When repairing the faucet, the cartridge retainer nut must be replaced. The cartridge retainer nuts are not interchangeable. You must identify the correct service kit. Cartridge Retainer: Retainer Nut (variety) 1255, 160657, 150257: The three cartridge retainer nuts are visually different and use ...
160657 Cartridge: Single Handle 4" Centerset Side and Top Mount Levers 202233 Cartridge: Single Handle Bathroom Faucets (After 2021) 92451 Cartridge Service Kit Repair Guide Cartridge Replacement-1224 or 1234 Cartridge? How to Tell the Difference Between a 1255, 150257 and 160657 Cartridge ...